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Geeta Pathak - One of the best experts on this subject based on the ideXlab platform.

  • Control of Wind-Diesel Microgrid Using Affine Projection-Like Algorithm
    IEEE Transactions on Industrial Informatics, 2016
    Co-Authors: Geeta Pathak, Bhim Singh, Bijaya Ketan Panigrahi
    Abstract:

    This paper deals with brushless Generators-based isolated wind-diesel microgrid for rural areas. Here, a permanent magnet brushless dc Generator (PMBLDCG) is used to convert renewable wind power into electrical energy. A diesel Engine-Driven Generator based on the squirrel-cage induction Generator (SCIG) and a battery storage system (BSS) with a voltage source converter (VSC) deliver power to feed necessary loads. BSS provides load leveling during load variations and wind fluctuations. For such microgrid, control schemes must be accurate and robust to overcome any discrepancy, and able to provide voltage and frequency regulation to the microgrid. Here, voltage and frequency control at the point of common coupling (PCC) is achieved with affine projection-like (APL) algorithm by proper switching of a VSC. This control algorithm is also able to provide reactive power compensation, load balancing, and harmonics suppression, and therefore provides sinusoidal voltage supply. Performance of the algorithm is demonstrated with wide range of test results of developed prototype of proposed microgrid.

  • Permanent magnet synchronous Generator based wind energy and DG hybrid system
    2014 Eighteenth National Power Systems Conference (NPSC), 2014
    Co-Authors: Geeta Pathak, Bhim Singh, B. K. Panigrahi
    Abstract:

    This paper investigates the use of permanent magnet synchronous Generators (PMSGs) for a wind energy conversion system (WECS) and a diesel engine driven Generator (DG) set of a standalone hybrid system with a battery energy storage system (BESS). For voltage control at the point of common coupling (PCC) and balanced supply at terminals of DG set, a single phase D-Q theory based control algorithm is applied for the switching of voltage source converter (VSC) of BESS and the maximum power point tracking (MPPT) is achieved for WECS with an incremental conductance technique for the switching of a dc-dc boost converter. Simulation results of developed model of proposed standalone hybrid system, which is developed in MATLAB demonstrate performance of both the controllers and power quality improvement of the hybrid system.

  • Permanent magnet synchronous Generator based wind energy and DG hybrid system
    2014 Eighteenth National Power Systems Conference (NPSC), 2014
    Co-Authors: Geeta Pathak, Bhim Singh, B. K. Panigrahi
    Abstract:

    This paper investigates the use of permanent magnet synchronous Generators (PMSGs) for a wind energy conversion system (WECS) and a diesel engine driven Generator (DG) set of a standalone hybrid system with a battery energy storage system (BESS). For voltage control at the point of common coupling (PCC) and balanced supply at terminals of DG set, a single phase D-Q theory based control algorithm is applied for the switching of voltage source converter (VSC) of BESS and the maximum power point tracking (MPPT) is achieved for WECS with an incremental conductance technique for the switching of a dc-dc boost converter. Simulation results of developed model of proposed standalone hybrid system, which is developed in MATLAB demonstrate performance of both the controllers and power quality improvement of the hybrid system.

Eugene P Columbus - One of the best experts on this subject based on the ideXlab platform.

  • Performance and emissions of a spark-ignited engine driven Generator on biomass based syngas.
    Bioresource technology, 2010
    Co-Authors: Ajay Shah, Radhakrishnan Srinivasan, Eugene P Columbus
    Abstract:

    Abstract The emergence of biomass based energy warrants the evaluation of syngas from biomass gasification as a fuel for personal power systems. The objectives of this study were to determine the performance and exhaust emissions of a commercial 5.5 kW Generator modified for operation with 100% syngas at different syngas flows and to compare the results with those obtained for gasoline operation at same electrical power. The maximum electrical power output for syngas operation was 1392 W and that for gasoline operation was 2451 W. However, the overall efficiency of the Generator at maximum electrical power output for both the fuels were found to be the same. The concentrations of CO and NO x in the Generator exhaust were lower for the syngas operation, respectively by 30–96% and 54–84% compared to the gasoline operation. However, the concentrations of CO 2 in the Generator exhaust were significantly higher by 33–167% for the syngas operation.

Bhim Singh - One of the best experts on this subject based on the ideXlab platform.

  • Control of Wind-Diesel Microgrid Using Affine Projection-Like Algorithm
    IEEE Transactions on Industrial Informatics, 2016
    Co-Authors: Geeta Pathak, Bhim Singh, Bijaya Ketan Panigrahi
    Abstract:

    This paper deals with brushless Generators-based isolated wind-diesel microgrid for rural areas. Here, a permanent magnet brushless dc Generator (PMBLDCG) is used to convert renewable wind power into electrical energy. A diesel Engine-Driven Generator based on the squirrel-cage induction Generator (SCIG) and a battery storage system (BSS) with a voltage source converter (VSC) deliver power to feed necessary loads. BSS provides load leveling during load variations and wind fluctuations. For such microgrid, control schemes must be accurate and robust to overcome any discrepancy, and able to provide voltage and frequency regulation to the microgrid. Here, voltage and frequency control at the point of common coupling (PCC) is achieved with affine projection-like (APL) algorithm by proper switching of a VSC. This control algorithm is also able to provide reactive power compensation, load balancing, and harmonics suppression, and therefore provides sinusoidal voltage supply. Performance of the algorithm is demonstrated with wide range of test results of developed prototype of proposed microgrid.

  • Performance of synchronous reluctance Generator for DG set based standalone supply system
    Electric Power Systems Research, 2016
    Co-Authors: Bhim Singh, Ram Niwas
    Abstract:

    Abstract This paper presents the performance of a SyRG (Synchronous Reluctance Generator) for DG (Diesel Engine Driven Generator) set based standalone generating system. A STATCOM (Static Compensator) is used for its voltage control, harmonics reduction and load balancing on a SyRG based DG set. The proposed system consists of a diesel engine driven specially designed SyRG with a rating of 3-phase, 3.7 kW, 50 Hz, 4-pole, 230 V line voltage SyRG, an excitation capacitor bank of 6.25 kV Ar and a STATCOM of 5 kV A. The modified PBT (Power Balance Theory) based control algorithm is used to estimate the reference source currents for control of STATCOM. A DSP (dSPACE) is used to implement this control algorithm of STATCOM. The performance of the proposed system is studied using STATCOM which improves the performance by exchanging the reactive power with the system. The source of reactive power is a capacitor bank and VSC (Voltage Source Converter) with a DC link capacitor used as STATCOM. The gating signals of VSC of the STATCOM are generated using PBT based control algorithm. The energy stored in the DC link is exchanged with the system to eliminate harmonics, voltage regulation and load balancing. The performance of the SyRG based standalone DG system is observed under a linear load of 3.19 kW with power factor of 0.8 and a nonlinear load of 2.99 kW under both balanced and unbalanced conditions. The proposed system has maintained fixed terminal voltage at 220 V, voltage and current harmonics within 5% under highly nonlinear load and balanced source currents under highly unbalanced load currents.

  • Permanent magnet synchronous Generator based wind energy and DG hybrid system
    2014 Eighteenth National Power Systems Conference (NPSC), 2014
    Co-Authors: Geeta Pathak, Bhim Singh, B. K. Panigrahi
    Abstract:

    This paper investigates the use of permanent magnet synchronous Generators (PMSGs) for a wind energy conversion system (WECS) and a diesel engine driven Generator (DG) set of a standalone hybrid system with a battery energy storage system (BESS). For voltage control at the point of common coupling (PCC) and balanced supply at terminals of DG set, a single phase D-Q theory based control algorithm is applied for the switching of voltage source converter (VSC) of BESS and the maximum power point tracking (MPPT) is achieved for WECS with an incremental conductance technique for the switching of a dc-dc boost converter. Simulation results of developed model of proposed standalone hybrid system, which is developed in MATLAB demonstrate performance of both the controllers and power quality improvement of the hybrid system.

  • Permanent magnet synchronous Generator based wind energy and DG hybrid system
    2014 Eighteenth National Power Systems Conference (NPSC), 2014
    Co-Authors: Geeta Pathak, Bhim Singh, B. K. Panigrahi
    Abstract:

    This paper investigates the use of permanent magnet synchronous Generators (PMSGs) for a wind energy conversion system (WECS) and a diesel engine driven Generator (DG) set of a standalone hybrid system with a battery energy storage system (BESS). For voltage control at the point of common coupling (PCC) and balanced supply at terminals of DG set, a single phase D-Q theory based control algorithm is applied for the switching of voltage source converter (VSC) of BESS and the maximum power point tracking (MPPT) is achieved for WECS with an incremental conductance technique for the switching of a dc-dc boost converter. Simulation results of developed model of proposed standalone hybrid system, which is developed in MATLAB demonstrate performance of both the controllers and power quality improvement of the hybrid system.

Bijaya Ketan Panigrahi - One of the best experts on this subject based on the ideXlab platform.

  • Control of Wind-Diesel Microgrid Using Affine Projection-Like Algorithm
    IEEE Transactions on Industrial Informatics, 2016
    Co-Authors: Geeta Pathak, Bhim Singh, Bijaya Ketan Panigrahi
    Abstract:

    This paper deals with brushless Generators-based isolated wind-diesel microgrid for rural areas. Here, a permanent magnet brushless dc Generator (PMBLDCG) is used to convert renewable wind power into electrical energy. A diesel Engine-Driven Generator based on the squirrel-cage induction Generator (SCIG) and a battery storage system (BSS) with a voltage source converter (VSC) deliver power to feed necessary loads. BSS provides load leveling during load variations and wind fluctuations. For such microgrid, control schemes must be accurate and robust to overcome any discrepancy, and able to provide voltage and frequency regulation to the microgrid. Here, voltage and frequency control at the point of common coupling (PCC) is achieved with affine projection-like (APL) algorithm by proper switching of a VSC. This control algorithm is also able to provide reactive power compensation, load balancing, and harmonics suppression, and therefore provides sinusoidal voltage supply. Performance of the algorithm is demonstrated with wide range of test results of developed prototype of proposed microgrid.

Ajay Shah - One of the best experts on this subject based on the ideXlab platform.

  • Performance and emissions of a spark-ignited engine driven Generator on biomass based syngas.
    Bioresource technology, 2010
    Co-Authors: Ajay Shah, Radhakrishnan Srinivasan, Eugene P Columbus
    Abstract:

    Abstract The emergence of biomass based energy warrants the evaluation of syngas from biomass gasification as a fuel for personal power systems. The objectives of this study were to determine the performance and exhaust emissions of a commercial 5.5 kW Generator modified for operation with 100% syngas at different syngas flows and to compare the results with those obtained for gasoline operation at same electrical power. The maximum electrical power output for syngas operation was 1392 W and that for gasoline operation was 2451 W. However, the overall efficiency of the Generator at maximum electrical power output for both the fuels were found to be the same. The concentrations of CO and NO x in the Generator exhaust were lower for the syngas operation, respectively by 30–96% and 54–84% compared to the gasoline operation. However, the concentrations of CO 2 in the Generator exhaust were significantly higher by 33–167% for the syngas operation.